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Message-ID: <20150704171909.GA24785@openwall.com>
Date: Sat, 4 Jul 2015 20:19:09 +0300
From: Solar Designer <solar@...nwall.com>
To: john-dev@...ts.openwall.com
Subject: Re: PHC: Lyra2 on GPU
On Sat, Jul 04, 2015 at 07:13:26PM +0200, Agnieszka Bielec wrote:
> 2015-07-04 19:06 GMT+02:00 Solar Designer <solar@...nwall.com>:
> > On Sat, Jul 04, 2015 at 06:51:14PM +0200, Agnieszka Bielec wrote:
> >> 2015-07-04 18:11 GMT+02:00 Solar Designer <solar@...nwall.com>:
> >> > On Sat, Jul 04, 2015 at 05:55:16PM +0200, Agnieszka Bielec wrote:
> >> >> [a@...er run]$ ./john --incremental=digits --min-length=8
> >> >> --max-length=8 hash --format=lyra2-opencl
> >> >> Loaded 1 password hash (Lyra2-opencl, Lyra2 [Lyra2 Sponge OpenCL
> >> >> (inefficient, development use only)])
> >> >> Device 0: Tahiti [AMD Radeon HD 7900 Series]
> >> >> Local worksize (LWS) 64, global worksize (GWS) 1024
> >> >> Device 0: Tahiti [AMD Radeon HD 7900 Series]
> >> >> Local worksize (LWS) 64, global worksize (GWS) 1024
> >> >
> >> > Why are these two lines repeated?
> >>
> >> because I'm using reset(), not init()
> >
> > Why are you doing that?
>
> I know how much memory i need basing on costs settings, and I autotune
> once again because optimal number of GWS may change for various costs
Maybe the auto-tuning could be done only once, only in reset()?
Alexander
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